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Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Item # C16023
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Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package Custom C16023
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This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller. Call 800-298-8924 to order Curt accessories and parts part number C16023 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package. Accessories and Parts reviews from real customers.
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Curt Accessories and Parts - C16023

  • Fifth Wheel Installation Kit
  • Rails
  • Curt
  • Custom

This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller.


  • Custom base is specially designed to attach to the receivers in your Chevy/GMC factory-installed, underbed 5th-wheel towing prep package
  • Base works with Curt hitches with sliders (16516, C16521, C16536, C16541, or C16546 - sold separately)
    • Adapter provides an additional 1-3/8" of height compared to industry standard rails
  • Quarter-turn anchoring system for quick installation and removal
  • Adjustable anchors help to eliminate chucking between legs and underbed platform
  • Durable carbide black powder coat finish


  • Application: Chevy/GMC trucks with factory-installed, underbed towing prep package
  • Capacity: 20,000 lbs
  • 10-Year warranty

16023 Curt OEM Fifth Wheel Roller Adapter for Chevrolet and General Motors Trucks with Factory Towing Prep Package

Installation Details C16023 Installation instructions

This Product Fits The Following Vehicles

Video of Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Curt Fifth Wheel Installation Kit C16023 Review

Today we're going to take a look at the Curt GM OEM puck system fifth wheel roller adaptor rails. This is a custom fit part. It is designed to fit the 2016 and newer Chevrolet Silverado, and GMC Sierra 2500 and 3500 trucks that have the six and a half foot bed, and the factory rail kit installed. Now, on a custom fit part, I always like to recommend for you to go to our website, use our fit guide, put in your year and model vehicle, and it will show you if this will work on your vehicle. Now, this is a custom base, specifically designed to attach to the receivers in your Chevy or GMC factory installed under bed towing prep package. This base will work with the Curt hitches that have sliders, part number C16521, C16516, C16541, and C16536. All those part numbers we do sell separately on our website.

Now, the adaptor, when you do install this into the puck system, it does add about a 1 3/8 inch height compared to your industry standard rails. It does use the quarter turn anchoring system for a nice quick installation and removal. All you have to do is pop this pin and clip, that's tethered to the rail, open this a quarter of a turn, and you'll notice the tabs turn. You'll do that on all four corners, and that will allow you to drop this base right into the puck system in the truck. Once it drops in, just turn it a quarter of a turn to lock it into place. Take your pin and clip, and then just install that back in there to lock that into place, keep this from opening. Now, if you notice, right here, they do have adjustable anchors to help to eliminate any chucking between any legs in the under bed platform.

You can just tighten or loosen this nut right here, to adjust the anchors. It does have a nice durable carbide black powder coat finish on it, to help resist corrosion. Comes with the four hitch pins and clips to secure your slider hitch to the adaptor. Comes with a nice set of detailed instructions that describe how to put it all together. Again, the specs on this, it's for a 2016 and newer Chevy or GMC truck with the factory installed under bed towing prep package. It does have a weight capacity of 20,000 pounds.

Basically, once you open these quarter turned system right here, drop it into your puck system, close them up, lock them into place, and this is installed in your truck bed. Then you'll notice these slots right here, this is where your Curt slider hitch will drop right in, and then using the included pins and clips attach it to the adaptor. Simple as that. That should do it for the review on the Curt GM OEM puck system fifth wheel roller adaptor rails.

Customer Reviews

Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package - C16023

Average Customer Rating:  4.8 out of 5 stars   (38 Customer Reviews)

This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller.

- C16023

Excellent service and professional advice by Matthew K. Prompt delivery with thorough instructions. Good folks to deal with. 868679

- C16023

It works like said with no problems . I installed on a 2019 Denali 2500 HD with a work box and I have no issues with pulling a 36 ft 5th wheel . 861912

- C16023

I bought these rails for my husbands truck as a present. I loved the fact that etrailer not only was able to show an exact fit but the photos of the rails INSTALLED on another trucked helped a TON! Also, their shipping was extremely fast! I choose to expedite the shipping just in case it wasn't here in time and it was here within 2 days... and they had a personal touch with their shipping updates with photos of the staff that was handling the item. :) I will use them again, hands down! 837571

- C16023

I didn't want to buy a new hitch, this adapter product worked well for the puck system in my 2019 Silverado. I had to adjust the hitch so that the fifth wheel trailer was more level when hooked up. 829708

- C16023
2019 Chevrolet Silverado 1500

This adapter allowed me to transfer my Curt E16 Roller Hitch from my 2013 GMC 1500 rail-mount to a 2019 Chev 3500HD with OE puck system. It raised the hitch height slightly but was easily readjusted on the E16 hitch body. I also adjusted the pinbox on my 10,000 lb trailer to compensate for the higher overall height of the 3500HD. This is a very well-made product that is working well for me. 776841

- C16023

This adapter has worked well, was easy to put together. It also fits my truck perfectly my only issue is the added height but that was to be expected. 772917

- C16023

First of all, the purchase procedure was painless and the product performed as listed. I purchased this fifth wheel hitch base for a 2018 GMC 2500HD with under the bed hidden puck fifth wheel configuration. After a few minor adjustments the base fit the truck and the 20K lb. fifth wheel hitch very well and performed equally as well. I would recommend this purchase. 675402

- C16023

Vanessa N confirmed that this was the correct puc base for our fifth wheel hitch. The product arrived promptly. It was easy to assemble after viewing the handy video and everything fits perfect. It took only about 20 minutes to assemble. We always shop online at etrailer for our product needs as they provide the best customer service and are very knowledgeable. 612020

- C16023

Does exactly what it's supposed to be doing great slider 603906

- C16023

Awesome product. Fit right into my factory set up. Highly recommend!!! Natalie was awesome! 574593

- C16023

Perfect fit to my factory set curt hitch 571147

- C16023

Perfect fit to factory GM puck system. Very happy! 570757

- C16023

Very easy to assemble. The instruction should say not the tighten the bolts on the crossmember until the base of the hitch in placed into the slots that attach the lower hitch to the rail assembly. I tighten all the bolts before I attempted to attached the lower hitch to the rails and the rail slots would not alleign with the base. Once I loosened the nuts the base fit perfectly then torqued all the nuts. 560335

- C16023
2017 Chevrolet Silverado 3500

Easy assembly and worked as described 522496

- C16023

I ordered my Curt hitch/adapter rails from etrailer and received a great price and prompt delivery. Everything arrived in good shape and has worked to perfection. Thank you etrailer. 497381

After a two years my hitch has worked to perfection. Great product.
Philip - 04/15/2019


- C16023
2017 GMC Sierra 2500

Prefect, purchased one with one pin missing, which I had. Saved $100.00. Assembled it, installed it in 30 min. Very heavy duty unit, already recommended unit to a friend and would recommend it to anyone. 494620

- C16023
2018 GMC Sierra 2500

Fit perfect in my 2018 GMC Denali. 491878

- C16023

Very good product! Super easy to install. Took me less than 30 minutes to have my 5th wheel hitch set up and ready to pull. Only weighs 80lbs and is easy to take in and out of the bed of the truck. Shipping from etrailer was fast. This is my second purchase from etrailer. Great experience. Company very heart full. 465116

- C16023
Chevrolet Silverado

The C16023 worked perfectly with my new Chevrolet silverado LTZ 2500 HD under the bed mounted fith wheel attachment. The only thing I recommend is to read the instruction before installation. It looked so simple to install I went ahead without reading the instruction and had to use a hammer to close the last locking handle. As it turns out there is a simple Castle nut and cotter pin adjustment to make. Luckily I did no damage and all went well during the installation. I would highly recommend this product. Also etrailer.com was vary helpful over the phone helping me figure out what I needed for my truck.. They also emailed when package was shipped and when it was delivered. They have the best prices as well. A big thanks to there customer service team for all of there help. 465090

- C16023

Perfect fit. 460886

- C16023

Very simple to put together. Very heavy unit. Made sure that I forced the clamps closed going into my puck system (just for piece of mind!) 441410

- C16023

fit perfect 421185

- C16023

Installed Curt A20 hitch w/slider rails in 2016 Chevrolet Z71 2500 411361

- C16023

Adapter plate is not only heavy but quality looks great and fit right in. Only had to adjust one locking cam a little too tight 405837

- C16023

Can not believe the condition of all items as they were received from shipping carrier. Boxes torn apart, bolts and nuts all scattered. Even 5th wheel hitch had rubber on handle cut. Found nuts and bolts on ground next to where the shipping carrier had unloaded items. Luckily found all nuts and bolts after searching area where it was off loaded from shipping truck. Even the cross brace for the hitch roller was bent. After reading other reviews I kind of expected this however. I can't believe you would ship something like a hitch protecting in the cheap boxes used! You need to improve the packaging! Other than that it did arrive quickly. 396454

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Used Items Available

Condition: Surface Scratches

Notes: Kit has cosmetic damage to all the bars. Shipping box broke allowing parts to hit against one another, will not affect the function of part. Could be touched up or re-painted if so desired.

Our Price: $328.21
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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Installed by:
Jeff D
Written by:
Chelsea B
Updated by:
Sarah W
Updated by:
Amanda M
Updated by:
Kristina F
Updated by:
Isabelle B

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